A random sample of 100 high school students was asked, “Do you prefer to be a leader or a follower?” The responses were then classified according to grade level. Here is a bar graph of the results: Based on this sample, is there convincing evidence of an association between grade level and leadership preference in the population of students at this large high school? Use = 0.05. Provide statistical evidence to support your answer.

i believe the answer is d.

hope it you! : d

47 - 90 = 43

43 - 180 = x

x = 137

answer: i wpould go with c

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.